PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/18-05:43:10
G03     190.1          18.3                4.5 +/-    2.25      10.3 +/-    2.25  0.150 / 0.210
G07     295.7          41.8                4.6 +/-    0.60       6.5 +/-    0.60  0.140 / 0.240
G08     141.1          30.1                5.6 +/-    0.68       9.8 +/-    0.68  0.030 / 0.080
G09     320.0          68.2                2.3 +/-    1.29       2.5 +/-    1.29  0.050 / 0.090
G16     42.4           33.3                1.8 +/-    1.73       3.0 +/-    1.73  0.050 / 0.070
G23     127.7          74.1                5.0 +/-    0.69       5.2 +/-    0.69  0.050 / 0.060
G27     95.2           34.9                5.1 +/-    0.66       8.1 +/-    0.66  0.030 / 0.040
G30     276.4          13.9                5.0 +/-    1.41      12.9 +/-    1.41  0.030 / 0.050